Hair-spring-removing tool.



W. M. JONES.

HAIR SPRiNG REMOVING TOOL.

APPLICATION FILED MAR. 24, 1914.

1, 1 ll,' 48 Patented June 29, 1915.

2 SHEETS-SHEET I.

7 William M 1] 0h es WWI mow THE NORRIS PETERS 60., F'HOYO-LITHO WASHINGTON, a. c

W. M. JONES.

HAIR SPRING REMOVING TOOL. APPLICATION FILED MAR. 24, 1914.

1,144,548. Patented June 29, 1915.

2 SHEETS-SHEET 2- gwuwwtoz m \Nm'umql Ldones &.C\% f THE NORRIS PETERS CO. PHOTO-LITHQ, WASHINGTON, D. C.

WILLIAM M. JONES, OF CHEGOTAH, OKLAHOMA.

HAIR-SPRINGr-REMOVING TOOL.

Specification of Letters Yatent.

Patented June 29, 1215.

Application filed March 24, 1914. Serial No. 826,953.

To all whom it may concern:

Be it known that I, WILLIAM M; J ONES, a citizen of Checotah, in the county of McIntosh and State of Oklahoma, have invented certain new and useful Improvements in Hair-Spring-Iiemoving Tools, of which the following is a specification, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in watch repairers tools; and comprises a tool by means of which the hairspring may be expeditiously and safely removed from the balance wheel without detaching the spring from the bridge.

Another object is to provide a tool enabling an operator to quickly remove the hairspring collet from the staff.

With these and other objects in view, the present invention consists in the combination and arrangement of parts as will be hereinafter more fully described and finally pointed out in the appended clain1s,it being further understood that changes in the specific structure shown and described may be made within the scope of the claims without departing from the spirit of the invention.

In the accompanying drawings forming a part of this specification and in which like numerals of reference indicate similar parts in the several views: Figure 1 shows a perspective View of a tool embodying my invention. Fig. 2 is a top view showing a balance wheel in position. Fig. 3 is an end view. Fig. 4 shows an enlarged detached detail with parts broken away of one of the plungers. Fig. 5 is a section on line 5, 5, of Fig. 2. Fig. 6 is a transverse sectional View showing the spring collet as lifted and loosened from the pin staff. Fig. 7 is a section on line 7 7, of Fig. 2. Fig. 8 is a detail of one of the lifting wedges, as employed in my invention.

In cleaning a watch it is necessary to remove the hairspring. The usual method is to detach the spring from the bridge and pry off the balance wheel, then attaching the same to the bridge to be trued to its true center. In doing this, the spring is likely to be kinked, while the balance wheel is often bent. This is also likely to occur where a new stafi is placed in the balance wheel. In my present invention I provide a tool by means of which the hairspring can be safely and quickly removed from the staff without danger of bending the wheel or kinking the spring.

1n carrying out the object of my invention, I employ a supporting base 10 having a flat upper face, this base being carried upon a handle a. As shown in the drawings, the base 10 is provided with two oblong openings 11 and 11, which communicate with the edge-entering splayed slots 12 and 12, while the base end through which the slots enter is provided with the spring sockets 13 and 13, clearly shown in Fig. 7. In connection with each splayed slot I employ a beveled edge plunger 14 and 14, each plunger having an upstanding head 15 and an enlarged operating stem 16, 16. Extending from the stem 16 is the ear 17, while extending from the stem 16 is the L- shaped guide stem 17. Upon the rear each plunger 14 and 14L is provided with a groove 18 and entering each groove is the end of a screw or pin 20, 20, these screws limiting the incursion and excursion of the plungers. One of the grooves is shown in Fig. 4:, while the other is indicated in dotted lines in Figs. 5 and 6. Held within the socket 13, and engaging the car 17 is a coil spring 7, normally forcing the plunger 14: into protractile position, while engaging the stem 17, the end of which is held within the socket 13, is the spring 7, as shown in Fig. 3. In the normal position of the plungers, as shown in the drawings, the upstanding heads 15 and 15, are located at the edge of the base openings 11 and 11.

Held within the slots communicating with the openings 11 and 11 are the shanks 21, of the slotted lifting wedges 22 employed in my invention. Each lifting wedge 22 has a centrally disposed slot 23, which ends at the head 25 of the wedge, the upper inclined faces 24 of the wedges inclining downward toward the center of the openings 11 and 11', as shown in Figs. 5 and 6. As shown in Fig. 2, the lifting wedge 22, is somewhat smaller than the lifting wedge 22, so that different sized balance wheels can be conveniently placed upon the tool in removing the spring carrying collets.

The operation of the tool is very simple. In order to remove a collet, the operator places the balance wheel B, flat upon the tool base 9, in such a manner that the arm 1",

of the wheel comes at right angles to and below the slot 23 Within one of the lifting wedges. As shown in Fig. 6, the upstand: ing heads 15 extend outward a distance equal to the thickness of the wheel arm r. The plunger is then manually pressed against the tension of the spring, so that the sharp edge of theslotted lifting wedges will come squarely below the spring holding collet 0. As shown in Fig. 6, the'spring P will be bent in being held upon the inclined face of the lifting wedge. As the plunger is advanced the staff 7, is forced into the slot 23 while the collet 0 is loosened and lifted from the stafi. In Fig. 6 I have shown the plunger 14: advanced whilethe collet 0 is shown as near the point of the staff 7", from which it can be readily re moved.

WVhile I have shown two plungers, it is of course understood that a tool with one plunger only could be used. The shanks 21 can be removed from their seats so that the lifting wedges can be replaced in case of necessity.

From the foregoing it will be seen that .the outstanding heads 15 are arranged to said wedge.

having an opening with a communicating splayed slot and a socket, of a grooved plunger slidably held within said slot having an upstanding head and ending in an operating stem, a pin within said base entering said groove to limit the incursion and excursion of said plunger, a spring having oneend held within said socket and the other secured to said stem to normally force said plunger into a protractile position, and a slotted lifting wedge extending over said opening'said head arranged to slide below 2. In combination, a base having an opening, a spring pressed plunger slidably secured to said base member and arranged to enter said opening, and a slotted lifting wedge extending over said opening, said plunger arranged to slide below said wedge.

3. In combination, a supporting base having an opening with a communicating splayed slot and a socket, of a grooved plunger slidably held within said slot having an upstanding head, a pin within said base entering said groove to limit the incursion and excursion of said plunger, an L-shaped stem secured to said plunger, a spring having one end held within said socket and theother upon said L-shaped stem and a slotted lifting wedge extending over said opening said head arranged to slide below said wedge.

In testimony whereof I afiix my signature, in the presence of two witnesses.

7 WILLIAM M. JONES.

. Witnesses i L. GUNN, J. W. OoMBs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. G. 

